instance method `find_by!`

Ruby on Rails 5.2.8.1

Since v4.0.13

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

find_by!(arg, *args)

Like #find_by, except that if no record is found, raises an ActiveRecord::RecordNotFound error.

Parameters

arg req
args rest

Source

# File activerecord/lib/active_record/relation/finder_methods.rb, line 88
    def find_by!(arg, *args)
      where(arg, *args).take!
    rescue ::RangeError
      raise RecordNotFound.new("Couldn't find #{@klass.name} with an out of range value",
                               @klass.name, @klass.primary_key)
    end

Defined in activerecord/lib/active_record/relation/finder_methods.rb line 88 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::FinderMethods

Signature

Parameters